/**
* Sets an irq on the PIC and I/O APIC.
*
* @returns true if delivered, false if postponed.
* @param pVM Pointer to the VM.
* @param iIrq The irq.
* @param iLevel The new level.
* @param uTagSrc The IRQ tag and source.
*
* @remarks The caller holds the PDM lock.
*/
static bool pdmR0IsaSetIrq(PVM pVM, int iIrq, int iLevel, uint32_t uTagSrc)
{
if (RT_LIKELY( ( pVM->pdm.s.IoApic.pDevInsR0
|| !pVM->pdm.s.IoApic.pDevInsR3)
&& ( pVM->pdm.s.Pic.pDevInsR0
|| !pVM->pdm.s.Pic.pDevInsR3)))
{
if (pVM->pdm.s.Pic.pDevInsR0)
pVM->pdm.s.Pic.pfnSetIrqR0(pVM->pdm.s.Pic.pDevInsR0, iIrq, iLevel, uTagSrc);
if (pVM->pdm.s.IoApic.pDevInsR0)
pVM->pdm.s.IoApic.pfnSetIrqR0(pVM->pdm.s.IoApic.pDevInsR0, iIrq, iLevel, uTagSrc);
return true;
}
/* queue for ring-3 execution. */
PPDMDEVHLPTASK pTask = (PPDMDEVHLPTASK)PDMQueueAlloc(pVM->pdm.s.pDevHlpQueueR0);
AssertReturn(pTask, false);
pTask->enmOp = PDMDEVHLPTASKOP_ISA_SET_IRQ;
pTask->pDevInsR3 = NIL_RTR3PTR; /* not required */
pTask->u.SetIRQ.iIrq = iIrq;
pTask->u.SetIRQ.iLevel = iLevel;
pTask->u.SetIRQ.uTagSrc = uTagSrc;
PDMQueueInsertEx(pVM->pdm.s.pDevHlpQueueR0, &pTask->Core, 0);
return false;
}
/** @interface_method_impl{PDMPCIHLPR0,pfnIoApicSetIrq} */
static DECLCALLBACK(void) pdmR0PciHlp_IoApicSetIrq(PPDMDEVINS pDevIns, int iIrq, int iLevel, uint32_t uTagSrc)
{
PDMDEV_ASSERT_DEVINS(pDevIns);
Log4(("pdmR0PciHlp_IoApicSetIrq: iIrq=%d iLevel=%d uTagSrc=%#x\n", iIrq, iLevel, uTagSrc));
PVM pVM = pDevIns->Internal.s.pVMR0;
if (pVM->pdm.s.IoApic.pDevInsR0)
{
pdmLock(pVM);
pVM->pdm.s.IoApic.pfnSetIrqR0(pVM->pdm.s.IoApic.pDevInsR0, iIrq, iLevel, uTagSrc);
pdmUnlock(pVM);
}
else if (pVM->pdm.s.IoApic.pDevInsR3)
{
/* queue for ring-3 execution. */
PPDMDEVHLPTASK pTask = (PPDMDEVHLPTASK)PDMQueueAlloc(pVM->pdm.s.pDevHlpQueueR0);
if (pTask)
{
pTask->enmOp = PDMDEVHLPTASKOP_IOAPIC_SET_IRQ;
pTask->pDevInsR3 = NIL_RTR3PTR; /* not required */
pTask->u.SetIRQ.iIrq = iIrq;
pTask->u.SetIRQ.iLevel = iLevel;
pTask->u.SetIRQ.uTagSrc = uTagSrc;
PDMQueueInsertEx(pVM->pdm.s.pDevHlpQueueR0, &pTask->Core, 0);
}
else
AssertMsgFailed(("We're out of devhlp queue items!!!\n"));
}
}
/**
* Sets an irq on the I/O APIC.
*
* @param pVM The VM handle.
* @param iIrq The irq.
* @param iLevel The new level.
*/
static void pdmRCIoApicSetIrq(PVM pVM, int iIrq, int iLevel)
{
if (pVM->pdm.s.IoApic.pDevInsRC)
{
pdmLock(pVM);
pVM->pdm.s.IoApic.pfnSetIrqRC(pVM->pdm.s.IoApic.pDevInsRC, iIrq, iLevel);
pdmUnlock(pVM);
}
else if (pVM->pdm.s.IoApic.pDevInsR3)
{
/* queue for ring-3 execution. */
PPDMDEVHLPTASK pTask = (PPDMDEVHLPTASK)PDMQueueAlloc(pVM->pdm.s.pDevHlpQueueRC);
if (pTask)
{
pTask->enmOp = PDMDEVHLPTASKOP_IOAPIC_SET_IRQ;
pTask->pDevInsR3 = NIL_RTR3PTR; /* not required */
pTask->u.SetIRQ.iIrq = iIrq;
pTask->u.SetIRQ.iLevel = iLevel;
PDMQueueInsertEx(pVM->pdm.s.pDevHlpQueueRC, &pTask->Core, 0);
}
else
AssertMsgFailed(("We're out of devhlp queue items!!!\n"));
}
}
/** @interface_method_impl{PDMDEVHLPRC,pfnPCISetIrq} */
static DECLCALLBACK(void) pdmRCDevHlp_PCISetIrq(PPDMDEVINS pDevIns, int iIrq, int iLevel)
{
PDMDEV_ASSERT_DEVINS(pDevIns);
LogFlow(("pdmRCDevHlp_PCISetIrq: caller=%p/%d: iIrq=%d iLevel=%d\n", pDevIns, pDevIns->iInstance, iIrq, iLevel));
PVM pVM = pDevIns->Internal.s.pVMRC;
PPCIDEVICE pPciDev = pDevIns->Internal.s.pPciDeviceRC;
PPDMPCIBUS pPciBus = pDevIns->Internal.s.pPciBusRC;
if ( pPciDev
&& pPciBus
&& pPciBus->pDevInsRC)
{
pdmLock(pVM);
pPciBus->pfnSetIrqRC(pPciBus->pDevInsRC, pPciDev, iIrq, iLevel);
pdmUnlock(pVM);
}
else
{
/* queue for ring-3 execution. */
PPDMDEVHLPTASK pTask = (PPDMDEVHLPTASK)PDMQueueAlloc(pVM->pdm.s.pDevHlpQueueRC);
if (pTask)
{
pTask->enmOp = PDMDEVHLPTASKOP_PCI_SET_IRQ;
pTask->pDevInsR3 = PDMDEVINS_2_R3PTR(pDevIns);
pTask->u.SetIRQ.iIrq = iIrq;
pTask->u.SetIRQ.iLevel = iLevel;
PDMQueueInsertEx(pVM->pdm.s.pDevHlpQueueRC, &pTask->Core, 0);
}
else
AssertMsgFailed(("We're out of devhlp queue items!!!\n"));
}
LogFlow(("pdmRCDevHlp_PCISetIrq: caller=%p/%d: returns void\n", pDevIns, pDevIns->iInstance));
}
/** @interface_method_impl{PDMDEVHLPR0,pfnPCISetIrq} */
static DECLCALLBACK(void) pdmR0DevHlp_PCISetIrq(PPDMDEVINS pDevIns, int iIrq, int iLevel)
{
PDMDEV_ASSERT_DEVINS(pDevIns);
LogFlow(("pdmR0DevHlp_PCISetIrq: caller=%p/%d: iIrq=%d iLevel=%d\n", pDevIns, pDevIns->iInstance, iIrq, iLevel));
PVM pVM = pDevIns->Internal.s.pVMR0;
PPCIDEVICE pPciDev = pDevIns->Internal.s.pPciDeviceR0;
PPDMPCIBUS pPciBus = pDevIns->Internal.s.pPciBusR0;
pdmLock(pVM);
uint32_t uTagSrc;
if (iLevel & PDM_IRQ_LEVEL_HIGH)
{
pDevIns->Internal.s.uLastIrqTag = uTagSrc = pdmCalcIrqTag(pVM, pDevIns->idTracing);
if (iLevel == PDM_IRQ_LEVEL_HIGH)
VBOXVMM_PDM_IRQ_HIGH(VMMGetCpu(pVM), RT_LOWORD(uTagSrc), RT_HIWORD(uTagSrc));
else
VBOXVMM_PDM_IRQ_HILO(VMMGetCpu(pVM), RT_LOWORD(uTagSrc), RT_HIWORD(uTagSrc));
}
else
uTagSrc = pDevIns->Internal.s.uLastIrqTag;
if ( pPciDev
&& pPciBus
&& pPciBus->pDevInsR0)
{
pPciBus->pfnSetIrqR0(pPciBus->pDevInsR0, pPciDev, iIrq, iLevel, uTagSrc);
pdmUnlock(pVM);
if (iLevel == PDM_IRQ_LEVEL_LOW)
VBOXVMM_PDM_IRQ_LOW(VMMGetCpu(pVM), RT_LOWORD(uTagSrc), RT_HIWORD(uTagSrc));
}
else
{
pdmUnlock(pVM);
/* queue for ring-3 execution. */
PPDMDEVHLPTASK pTask = (PPDMDEVHLPTASK)PDMQueueAlloc(pVM->pdm.s.pDevHlpQueueR0);
AssertReturnVoid(pTask);
pTask->enmOp = PDMDEVHLPTASKOP_PCI_SET_IRQ;
pTask->pDevInsR3 = PDMDEVINS_2_R3PTR(pDevIns);
pTask->u.SetIRQ.iIrq = iIrq;
pTask->u.SetIRQ.iLevel = iLevel;
pTask->u.SetIRQ.uTagSrc = uTagSrc;
PDMQueueInsertEx(pVM->pdm.s.pDevHlpQueueR0, &pTask->Core, 0);
}
LogFlow(("pdmR0DevHlp_PCISetIrq: caller=%p/%d: returns void; uTagSrc=%#x\n", pDevIns, pDevIns->iInstance, uTagSrc));
}
